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Codebook for NHGIS data file 'nhgis0025_ds95_1970_county'
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Contents
    - Data Summary
    - Data Dictionary
    - Citation and Use
 
Additional documentation on NHGIS data sources is available at: 
    https://www.nhgis.org/documentation/tabular-data 
 
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Data Summary
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Year:             1970
Geographic level: County (by State)
Dataset:          1970 Census: Count 2 - 100% Data [Tracts, Urban Areas, Metro Areas, etc.] 
   NHGIS code:    1970_Cnt2
   NHGIS ID:      ds95
Breakdown(s):     Geographic Subarea:
                     Total area (000)
 
Tables:
 
1. Sex by Race
   Universe:    Persons
   Source code: NT1
   NHGIS code:  CEB
 
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Data Dictionary
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Context Fields 
        GISJOIN:     GIS Join Match Code
        YEAR:        Data File Year
        STATE:       State Name
        STATEA:      State Code
        COUNTY:      County Name
        COUNTYA:     County Code
        CTY_SUBA:    County Subdivision Code
        PLACEA:      Place Code
        TRACTA:      Census Tract Code
        SCSAA:       Standard Consolidated Statistical Area Code
        SMSAA:       Standard Metropolitan Statistical Area Code
        URB_AREAA:   Urban Area Code
        BLOCKA:      Block Code
        CDA:         Congressional District Code
        AREANAME:    Area Name
 
Breakdown:
    Geographic Subarea: Total area (000)
 
    Table 1:     Sex by Race
    Universe:    Persons
    Source code: NT1
    NHGIS code:  CEB
        CEB001:      Male >> White
        CEB002:      Male >> Negro
        CEB003:      Male >> Indian
        CEB004:      Male >> Japanese
        CEB005:      Male >> Chinese
        CEB006:      Male >> Filipino
        CEB007:      Male >> Hawaiian
        CEB008:      Male >> Korean
        CEB009:      Male >> Other
        CEB010:      Female >> White
        CEB011:      Female >> Negro
        CEB012:      Female >> Indian
        CEB013:      Female >> Japanese
        CEB014:      Female >> Chinese
        CEB015:      Female >> Filipino
        CEB016:      Female >> Hawaiian
        CEB017:      Female >> Korean
        CEB018:      Female >> Other
 
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Citation and Use of NHGIS Data
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      should include the following citation:

        Steven Manson, Jonathan Schroeder, David Van Riper, Tracy Kugler, and Steven Ruggles. 
        IPUMS National Historical Geographic Information System: Version 16.0 
        [dataset]. Minneapolis, MN: IPUMS. 2021. 
        http://doi.org/10.18128/D050.V16.0

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        IPUMS NHGIS, University of Minnesota, www.nhgis.org.

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